(function(){
    //创建eacharts对象
    var myEacharts=echarts.init(document.querySelector('.bar .chart'))
    var option = {
        xAxis: {
        type: 'category',
        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
        },
        yAxis: {
        type: 'value'
        },
        series: [{
        data: [820, 932, 901, 934, 1290, 1330, 1320],
        type: 'line'
        }]
        };
        myEacharts.setOption(option)
})